Calculating First and Second Year of Sales by Customer in #dax #powerpivot #ssas #tabularhttp://blog.sqlblog.com/blogs/marco_russo/archive/2013/09/09/calculating-first-and-second-year-of-sales-by-customer-in-dax-powerpivot-ssas-tabular.aspxI recently wrote an article that describes how to calculate a measure (such a sales, but it could be anything else) considering for each customer its first 12 months, then months 13-24 and so on. In practice, for every customer you have a different rangeenCommunityServer 2.1 SP2 (Build: 61129.1)